malformed "mail from" address

[Darren]

Hi,

We are running SBS 4.5 obviously with Exchange 5.5, occassionally we get
e-mail messages as below; I was
wondering what it means, what is causing it.

Any help would be appreciated.

Thank you in advance.

Please see below.

Darren

From: System Administrator

To: Administrator@"mydomain".co.uk

Subject: Undeliverable: Organisation Changes

<<Organisation Changes>>

Mailserver received mail with malformed "mail from:" address.

Because this mail was undeliverable, you (as main postmaster) get this mail
instead of former sender

Mail to original sender >>>>

Your message

To: som...@hotmail.com, did not reach recipient

Mailserver tried 20times to connect every 10minutes.

This mail domain has following registered mail servers:

Mail eXchange host:194.xxx.xxx.xx priority:0

After command RCPT TO:<"someone"@hotmail.com,>

Server responded:501 <"someone"@hotmail.com,>: malformed address: ,>

may not follow <"someone"@hotmail.com

[Al Williams]

How is your exchange setup? POP3 connector? Full SMTP server online?
Deliver via DNS?
Was the mail something sent by your company?

If this was not sent by someone in your company you may be relaying, follow:
http://www.exchangeadmin.com/Articles/Index.cfm?ArticleID=7696

--
Allan Williams
Edmonton, Alberta, CANADA

"Darren" <NO_...@SPAM.COM> wrote in message
news:akid1e$r0f$1$830f...@news.demon.co.uk...

[Steve Foster [SBS MVP]]

According to the error message, it is because double quotes have been
placed around someone, which makes the email address invalid as double
quotes are not allowed in an email address.

--
Steve Foster [SBS MVP]
---------------------------------------
MVPs do not work for Microsoft. Please reply only to the newsgroups.

---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.384 / Virus Database: 216 - Release Date: 22/8/2002

[Darren]

Sorry guys.... I did not make it clear in my post.....

I included the quote marks (") to try to show that I have actually manually
changed the information in the quoted marks i.e. "someone".... to keep
everything annonymous, therefore avoiding potential spam from this group.

Sorry again.

So the problem still exisits.

It appears that the NDR is generated from a message received into the
Company, and the NDR seems to have a problem with just one of the addressees
(external to our company)... the original message is actually addressed to
several people.

I hope this answers some questions.

The server uses DNS and has a perminent connection via DSL.

Thanks again

Darren

"Steve Foster [SBS MVP]" <steve....@picamar.co.uk> wrote in message
news:uk9I$arTCHA.1676@tkmsftngp12...